Answer:
The answer is 'hire the additional worker'
Step-by-step explanation:
The firm should hire the additional worker.
An organization should hire additional workers to increase its profits if the marginal revenue product of labor is more than the wage rate.
Let's do the calculation:
The firm sells the product at $3
And hiring another product will increase the output by 5units
The total cost will be 3 x 5
= $15
And the firm pays the labour $13 for producing the 5 units.
The gain is $2 ($15 - $13).
Therefore, the firm should hire the additional worker.